Ecological and genetic determinants of Pepino Mosaic Virus emergence.

ABSTRACT:

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Virus emergence is a complex phenomenon, which generally involves spread to a new host from a wild host, followed by adaptation to the new host. Although viruses account for the largest fraction of emerging crop pathogens, knowledge about their emergence is incomplete. We address here the question of whether Pepino Mosaic Virus (PepMV) emergence as a major tomato pathogen worldwide could have involved spread from wild to cultivated plant species and host adaptation. For this, we surveyed natural populations of wild tomatoes in southern Peru for PepMV infection. PepMV incidence, genetic variation, population structure, and accumulation in various hosts were analyzed. PepMV incidence in wild tomatoes was high, and a strain not yet reported in domestic tomato was characteri

SUBMITTER: Moreno-Perez MG 

PROVIDER: S-EPMC3957916 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature